Just what I said. You use friend as a title and the name identifies the person. With commas you would just specify one characteristic of this friend like in: “My friend, the hypochondriac baboon of a Peter I know too well, is nothing but the love of my life.” Then it is an apposition to the first noun “friend.”

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Dr Jacques COULARDEAU, PhD in Germanic Linguistics (University Lille III) and ESP Teaching (University Bordeaux II) has been teaching all types of ESP

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